Magnetic steel loading and separating device for an energy motor rotor

ABSTRACT

The magnetic steel loading and separating device is used for separating magnetic steel strips and large plastic spacers of a magnetic steel plate, and includes a material case, a material pushing mechanism and a material separating mechanism. The material case includes a case body for accommodating the magnetic steel plate, and a discharge port is formed in a side wall of the case body. The material pushing mechanism is used for successively pushing the magnetic steel strips and the large plastic spacers of the magnetic steel plate out of the material case via the discharge port, wherein a discharge position and a take-up position that are provided for the magnetic steel strip are formed outside the material case. The material separating mechanism includes a magnetic steel pushing block that reciprocates between the discharge position and the take-up position of the magnetic steel strip.

CROSS-REFERENCE TO RELATED APPLICATIONS

See Application Data Sheet.

STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT

Not applicable.

THE NAMES OF PARTIES TO A JOINT RESEARCH AGREEMENT

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INCORPORATION-BY-REFERENCE OF MATERIAL SUBMITTED ON A COMPACT DISC OR ASA TEXT FILE VIA THE OFFICE ELECTRONIC FILING SYSTEM (EFS-WEB)

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STATEMENT REGARDING PRIOR DISCLOSURES BY THE INVENTOR OR A JOINTINVENTOR

Not applicable.

BACKGROUND OF THE INVENTION 1. Field of the Invention

The present invention relates to a magnetic steel loading and separatingdevice for a new energy motor rotor, and the magnetic steel loading andseparating device is used for a magnetic steel loading and separatingprocess of the new energy motor rotor in a magnetic steel assemblingprocess.

2. Description of Related Art Including Information Disclosed Under 37CFR 1.97 and 37 CFR 1.98

With the booming development of new energy vehicles, the demand formotor production is growing. When new energy vehicle drive motors (i.e.,new energy motors) are mass-produced, the magnet steel assembling formotor rotors is a time-consuming and labor-consuming process in theproduction of motors. In the actual magnetic steel assembling work formotor rotors, the magnetic steels are integrally placed in a laminatedmanner and are spaced by plastic spacers. The process of magnetic steelassembling includes: magnetic steel separation; magnetic poleidentification; and embedding of magnetic steels into a rotor punch.

The magnetic steels for motor rotors are manually assembledsubstantially, that is, the incoming magnetic steel is manually dividedinto strips from a plate, the strips are subdivided into individualsheets, and then the sheets are manually assembled into the rotor punch.This method is time-consuming and labor-consuming, resulting in very lowassembling efficiency, which is detrimental to the mass production ofmotors.

There are also some assembling methods which are similarlysemi-automatic, such as a feeding mechanism of an automatic magneticsteel plug-in device for a motor disclosed in the Chinese patentdocument CN204103690 U, and a rotor magnetic steel assembling tool for apermanent magnet synchronous motor disclosed in the Chinese patentdocument CN104201838 A. However, it is very common to divide astrip-shaped magnetic steel into sheets, but uncommon to divide themagnetic steel from a plate into strips in these methods. Due tocontinuous needs for manual participation, the production efficiency ofthe motor rotors cannot be improved significantly, and the needs forlarge-scale automatic production cannot be satisfied.

BRIEF SUMMARY OF THE INVENTION

An objective of the present invention is to provide a magnetic steelloading and separating device for a new energy motor rotor, so as tosolve the problem that the existing magnetic steel assembling processfor new energy motor rotors cannot adapt to large-scale automaticproduction.

Therefore, the present invention provides a magnetic steel loading andseparating device for a new energy motor rotor. The magnetic steelloading and separating device is used for separating magnetic steelstrips from large plastic spacers of a magnetic steel plate, andcomprises a material case, a material pushing mechanism and a materialseparating mechanism, wherein the material case is used foraccommodating the magnetic steel plate, and a discharge port is formedin a side wall of the material case; the material pushing mechanism isused for successively pushing the magnetic steel strip and the largeplastic spacer of the magnetic steel plate out of the material case viathe discharge port, wherein a discharge position and a take-up positionthat are provided for the magnetic steel strip are formed outside thematerial case; the material separating mechanism comprises a magneticsteel pushing block that reciprocates between the discharge position andthe take-up position of the magnetic steel strip; the magnetic steelpushing block is used for lifting the magnetic steel strip from thedischarge position to the take-up position, and in this process, thelarge plastic spacer is pushed out of the discharge port; and themagnetic steel pushing block is used for stripping the large plasticspacer when returning to the discharge position.

Further, the magnetic steel pushing block is provided with an upperbearing groove and a lower bearing groove; the upper bearing groove isused for bearing the magnetic steel strip at the discharge position; andthe lower bearing groove is used for bearing the large plastic spacerwhen the magnetic steel pushing block is at the take-up position.

Further, the material case is internally provided with an incomingmaterial placement position at which the magnetic steel plate is placed;the magnetic steel loading and separating device further comprises amaterial shifting mechanism used for pushing the magnetic steel plate toa working position from the incoming material placement position; andthe material pushing mechanism is used for successively pushing themagnetic steel strips and the large plastic spacers of the magneticsteel plate at the working position out of the material case via thedischarge port.

Further, the length of an accommodating space of the case body is 2times greater than or equal to the width of the magnetic steel plate,and the width of the accommodating space of the case body is equal tothe length of the magnetic steel plate.

Further, the magnetic steel loading and separating device for the newenergy motor rotor further comprises a cover plate for sealing anopening of the case body of the material case.

Further, the material pushing mechanism comprises a magnetic steelpushing plate, and a material pushing electro-actuator having acontrollable material pushing stroke.

Further, the magnetic steel loading and separating device for the newenergy motor rotor further comprises a rack for supporting the materialcase.

Further, the magnetic steel loading and separating device for the newenergy motor rotor further comprises a magnetic pole sensor for sensinga magnetic pole direction of the magnetic steel strip at the take-upposition.

The present invention has the following technical effects.

(1) According to the loading and separating device of the presentinvention, one plate may be loaded manually at a time. A large number ofmagnetic steels, which is included in one plate can maintain theproduction for a longer time, such that the working efficiency isgreatly improved and the labor is saved.

(2) One plate may be separated into strip-shaped magnetic steelmaterials, accompanied with precise positioning and fast operation. Theseparated state facilitates the subsequent fully-automatic assemblingprocess.

(3) The plastic spacers in the magnetic steel plate can be recycled bymeans of a simple mechanical structure. On the one hand, the cost isreduced, and the plastic spacers are prevented from scatteringeverywhere on the other hand.

Except for the objective, features and advantages described above, thepresent invention has other objectives, features and advantages. Thepresent invention will now be described in further detail with referenceto the accompanying drawings.

BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS

The accompanying drawings of the description, which constitute a part ofthis application, are used to provide a further understanding of thepresent invention. The exemplary embodiments of the present inventionand the description thereof are intended to explain the presentinvention, rather than limiting the present invention improperly.

FIG. 1 is a schematic view of structural diagram of a magnetic steelloading and separating device for a new energy motor rotor according toan embodiment of the present invention.

FIG. 2 is a top plan view of a magnetic steel loading and separatingdevice for a new energy motor rotor according to an embodiment of thepresent invention.

FIG. 3 is an A-A sectional view of the magnetic steel loading andseparating device for the new energy motor rotor as shown in FIG. 2.

FIG. 4 is a schematic view of structural stereogram of a magnetic steelloading and separating device for a new energy motor rotor according toan embodiment of the present invention.

FIG. 5 is a schematic view of a structural stereogram of a magneticsteel plate of a magnetic steel loading and separating device for a newenergy motor rotor according to an embodiment of the present invention.

FIG. 6 is a schematic view of a flowchart when the magnetic steel plateis separated into magnetic steel strips and then the strips aresubdivided into magnetic steel sheets according to an embodiment of thepresent invention

FIG. 7a is a schematic view of a diagram when one magnetic steel plateis manually placed in a material case of the loading and separatingdevice according to an embodiment of the present invention.

FIG. 7b is an A-A sectional view of FIG. 7 a.

FIG. 8a is a schematic view of a diagram when a cover plate is closedaccording to an embodiment of the present invention.

FIG. 8b is an A-A sectional view of FIG. 8 a.

FIG. 9a is a schematic view of a diagram when a magnetic steel plate ispushed in place in the material case according to an embodiment of thepresent invention.

FIG. 9b is an A-A sectional view of FIG. 9 a.

FIG. 10a is a schematic view of a diagram when a magnetic steel strip ofa magnetic steel plate is pushed out of a discharge port of the materialcase according to an embodiment of the present invention.

FIG. 10b is an A-A sectional view of FIG. 10 a.

FIG. 11a is a schematic view of a diagram when a magnetic steel stripoutside the material case is lift according to an embodiment of thepresent invention.

FIG. 11b is an A-A sectional view of FIG. 11 a.

FIG. 12a is a schematic view of a diagram when a large plastic spacer ispushed in place according to an embodiment of the present invention.

FIG. 12b is an A-A sectional view of FIG. 12 a.

FIG. 13a is a schematic view of a structure diagram when a large plasticspacer is separated according to an embodiment of the present invention.

FIG. 13b is an A-A sectional view of FIG. 13 a.

FIG. 14a is a schematic view of a diagram when another magnetic steelstrip of a magnetic steel plate is pushed out of the discharge port ofthe material case according to an embodiment of the present invention.

FIG. 14b is an A-A sectional view of FIG. 14 a.

DETAILED DESCRIPTION OF THE INVENTION

It should be noted that the embodiments in this application and thefeatures in the embodiments may be combined with each other withoutconflict. The present invention will be described in detail below withreference to the accompanying drawings in conjunction with theembodiments.

FIGS. 1 to 14 illustrate some embodiments according to the presentinvention.

Referring to FIGS. 1 to 6, a loading and separating device of thepresent invention is applied to a magnetic steel loading and separatingprocess before a magnetic steel of a motor rotor is assembled.

In an embodiment, the loading and separating device of the presentinvention comprises a rack 1, a material case 2, a cover plate 3, amaterial shifting mechanism, a material separating device and a materialpushing mechanism.

The material case 2 is mounted on an upper mounting surface of the rack1 which serves as a body part of a complete unit.

An accommodating space of a magnetic steel plate 14 is formed in thematerial case 2. An incoming material placement position and a workingposition are provided for the magnetic steel plate 14 in the materialcase. In order to accomplish the corresponding functions, a plurality ofgrooves and holes are machined in the material case 2. The sidewall ofthe material case 2 is provided with a discharge port 2 a. A magneticsteel strip 15 and a large plastic spacer 14 of the magnetic steel plate14 are pushed out of the material case by means of the discharge port.

The cover plate 3 is mainly made of a transparent acrylic plate, ismounted in the material case via an opening and an insertion slot in thematerial case 2, and is capable of being inserted into or drawn out fromthe material case. The cover plate 3 has a function of limiting theupper part of the magnetic steel and preventing the magnetic steel frominclining or falling when the magnetic steel is placed in the materialcase. The transparent acrylic material facilitates observing the stateof the magnetic steel.

The material shifting mechanism is used for pushing the magnetic steelplate 14 to the working position from the incoming material placementposition.

In an embodiment, the material shifting mechanism comprises a firstmaterial shifting cylinder 4 and a magnetic steel shifting sheet 5. Themagnetic steel shifting sheet 5 is arranged on the first materialshifting cylinder 4 and used for shifting the magnetic steel plate 14placed in the material case 2.

The material pushing mechanism is used for successively pushing magneticsteel strips and large plastic spacers of the magnetic steel plate 14out of the discharge port 2 a, wherein a pushing stroke of the pushingmechanism is equal to the thickness of a pushed object.

In an embodiment, the pushing mechanism comprises a material pushingelectro-actuator 7 and a magnetic steel pushing plate 8. Anelectro-actuator mounting support 6 is mounted on the rack 1. Thematerial pushing electro-actuator 7 is mounted above theelectro-actuator mounting support 6. The magnetic steel pushing plate 8is arranged at the front end of the material pushing electro-actuator 7.

The material separating mechanism comprises a magnetic steel pushingblock 11. The magnetic steel pushing block 11 reciprocates between adischarge position and a take-up position of the magnetic steel strip,and is used for lifting the magnetic steel strip from the dischargeposition to the take-up position. In addition, the large plastic spaceris “scraped off” when the magnetic steel strip descends to the dischargeposition from the take-up position.

As shown in FIG. 4, the magnetic steel pushing block 11 is provided withan upper bearing groove 11 a and a lower bearing groove 11 b. The upperbearing groove is used for accommodating the magnetic steel strip at thedischarge position. The lower bearing groove is used for accommodatingthe large plastic spacer at the discharge position.

In an embodiment, the material separating mechanism comprises a secondmaterial shifting cylinder 10 for driving the magnetic steel pushingblock 11. The second material shifting cylinder 10 is mounted on acylinder mounting support 9. The magnetic steel pushing block 11 islocated at the upper end of the second material shifting cylinder 10.

A magnetic pole sensor 13 is arranged on the periphery of the materialcase 2 and used for sensing a magnetic pole direction of a material thatis pushed out finally. The magnetic pole sensor 13 is arranged on amounting support 12.

A working principle of the loading and separating device of the presentinvention is as follows.

(1) A plate (magnetic steel plate) 14 is placed into the material case 2manually from the outside of automated magnetic steel assemblingequipment. The subsequent processes can be completely automated by anactuation mechanism. The first material shifting cylinder shifts amaterial into the magnetic steel assembling equipment automatically in aY direction. The inside and the outside of the equipment are spaced by asafety protection net.

(2) The first material shifting cylinder shifts the plate 14 to theworking position, and the material pushing electro-actuator pushes theplate to a second working position horizontally in an X direction. Sincethe electro-actuator can theoretically move an infinite number ofcontrollable positions within a stroke range, the horizontal movement ofone magnetic steel plate at a plurality of positions can be satisfied.

(3) When the plate reaches the second working position, there is onemagnetic steel reaching one bearing groove of the magnetic steel pushingblock 11, such that the bearing groove just bears one magnetic steel.This magnetic steel may be pushed out vertically by the second materialshifting cylinder in a Z direction, such that a part of magnetic steelis exposed to facilitate subsequent operation of gripping the magneticsteel from a different position by using a robot.

(4) During the ascending process of the second material shiftingcylinder, the electro-actuator is pushed forward for a short distance,so that the plastic spacer is stuck in the lower bearing groove of themagnetic steel pushing block. The plastic spacer may be “scraped off”when the second material shifting cylinder descends, therebyaccomplishing the recycle of the plastic spacer.

FIG. 5 shows a state of an incoming material of the magnetic steel plate14. FIG. 6 is a schematic diagram when one magnetic steel plate isseparated into magnetic steel strips and then the strips are subdividedinto magnetic steel sheets. Due to the magnetic characteristics of themagnetic steel, the magnetic pole directions of all magnetic steels areoriented in the same direction, the magnetic pole directions of everytwo adjacent magnetic steel strips are opposite, and there is a greatmagnetic attraction force between every two adjacent magnetic steelsheets and between every two adjacent magnetic steel strips. For sake ofseparation, a small plastic spacer 18 is arranged between every twoadjacent magnetic steel sheets 16, and a large plastic spacer 17 isarranged between every two adjacent magnetic steel strips 15.

FIG. 7a , FIG. 8a and FIG. 14a illustrate the whole loading andseparating process of the magnetic steel. FIG. 7a illustrates manualplacement of a magnetic steel plate in the material case. FIG. 8a is aschematic diagram when a cover plate is closed. For sake ofunderstanding and observing, FIG. 9a , and FIGS. 10a to 14a illustrate aschematic diagram when the cover plate is drawn out, wherein the coverplate is always closed in the actual production process.

FIG. 9a , FIG. 10a and FIG. 11a illustrate a process that the magneticsteel strip is pushed and separated, such that the magnetic steel stripis exposed to facilitate subsequent gripping. FIG. 12a , FIG. 13a andFIG. 14a illustrate a recycling process of the large plastic spacer,such that the large plastic spacer can enter the next cycle and thennext magnetic steel is pushed out continuously.

A working process of the present invention is as follows.

A magnetic steel plate 14 is placed in the material case 2 manually fromthe outside of the equipment. The cover plate 3 is closed. The firstmaterial shifting cylinder pushes the magnetic steel plate to the firstworking position, and the magnetic steel enters into the equipment fromthe outside. The material pushing electro-actuator 7 pushes the magneticsteel plate to a second working position horizontally in an X direction.The magnetic steel strip 15 on the rightmost side enters the upperbearing groove of the magnetic steel pushing block 11. The secondmaterial shifting cylinder actuates upwards to separate the magneticsteel strip 15 from the magnetic steel plate 14, such that the magneticsteel strip is exposed. The magnetic pole sensor 13 senses a magneticpole direction of the magnetic steel strip that is pushed out, and makesa judgment.

Then, the material pushing electro-actuator 7 continues to move forwardfor a distance to push the large plastic spacer 17 into the lowerbearing groove of the magnetic steel pushing block 11. The secondmaterial shifting cylinder actuates downward and returns to an originalposition, such that the large plastic spacer 17 is taken down. Thematerial pushing electro-actuator 7 continues to actuate and executesthe next cycle of pushing-separating a magnetic steel strip.

In a further embodiment, the structure of the loading and separatingdevice of the present invention is simplified. Specifically, themagnetic steel plate is directly placed in a working position, i.e., theworking position is an incoming material placement position.Correspondingly, a material shifting mechanism is omitted. The loadingand separating device of this embodiment can also achieve the separationof the plate magnet steel into magnetic steel strips and large plasticspacers.

The above descriptions are only preferred embodiments of the presentinvention and are not intended to limit the present invention. For thoseskilled in the art, the present invention may have various modificationsand changes. Any amendment, equivalent substitution and improvement madewithin the spirit and principle of the present invention shall becontained in the protection scope of the present invention.

1. A magnetic steel loading and separating device for a new energy motorrotor used for separating magnetic steel strips from large plasticspacers of a magnetic steel plate, the device comprising: a materialcase; a material pushing mechanism; and a material separating mechanism,wherein said material case is used for accommodating the magnetic steelplate, and a discharge port is formed in a side wall of the materialcase, wherein the material pushing mechanism is used for successivelypushing the magnetic steel strips and the large plastic spacers of themagnetic steel plate out of the material case via the discharge port,wherein a discharge position and a take-up position that are providedfor the magnetic steel strip are formed outside the material case,wherein the material separating mechanism comprises a magnetic steelpushing block that reciprocates between the discharge position and thetake-up position of the magnetic steel strip, and wherein the magneticsteel pushing block is used for lifting the magnetic steel strip fromthe discharge position to the take-up position, and in this process, thelarge plastic spacer is pushed out of the discharge port; and themagnetic steel pushing block is used for stripping the large plasticspacer when returning to the discharge position.
 2. The magnetic steelloading and separating device for the new energy motor rotor accordingto claim 1, wherein the magnetic steel pushing block is provided with anupper bearing groove and a lower bearing groove; the upper bearinggroove is used for bearing the magnetic steel strip at the dischargeposition; and wherein the lower bearing groove is used for bearing thelarge plastic spacer when the magnetic steel pushing block is at thetake-up position.
 3. The magnetic steel loading and separating devicefor the new energy motor rotor according to claim 1, wherein thematerial case is internally provided with an incoming material placementposition at which the magnetic steel plate is placed; wherein themagnetic steel loading and separating device comprises a materialshifting mechanism used for pushing the magnetic steel plate to aworking position from the incoming material placement position; andwherein the material pushing mechanism is used for successively pushingthe magnetic steel strip and the large plastic spacer of the magneticsteel plate at the working position out of the material case via thedischarge port.
 4. The magnetic steel loading and separating device forthe new energy motor rotor according to claim 3, wherein the length ofan accommodating space of the case body is 2 times greater than or equalto the width of the magnetic steel plate, and wherein the width of theaccommodating space of the case body is equal to the length of themagnetic steel plate.
 5. The magnetic steel loading and separatingdevice for the new energy motor rotor according to claim 1, furthercomprising a cover plate for sealing an opening of the case body of thematerial case.
 6. The magnetic steel loading and separating device forthe new energy motor rotor according to claim 1, wherein the materialpushing mechanism comprises a magnetic steel pushing plate, and amaterial pushing electro-actuator having a controllable material pushingstroke.
 7. The magnetic steel loading and separating device for the newenergy motor rotor according to claim 1, further comprising a rack forsupporting the material case.
 8. The magnetic steel loading andseparating device for the new energy motor rotor according to claim 1,further comprising a magnetic pole sensor for sensing a magnetic poledirection of the magnetic steel strip at the take-up position.